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<pre><span class="sourceLineNo">001</span>/*-<a name="line.1"></a>
<span class="sourceLineNo">002</span> *******************************************************************************<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (c) 2011, 2016 Diamond Light Source Ltd.<a name="line.3"></a>
<span class="sourceLineNo">004</span> * All rights reserved. This program and the accompanying materials<a name="line.4"></a>
<span class="sourceLineNo">005</span> * are made available under the terms of the Eclipse Public License v1.0<a name="line.5"></a>
<span class="sourceLineNo">006</span> * which accompanies this distribution, and is available at<a name="line.6"></a>
<span class="sourceLineNo">007</span> * http://www.eclipse.org/legal/epl-v10.html<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> * Contributors:<a name="line.9"></a>
<span class="sourceLineNo">010</span> * Peter Chang - initial API and implementation and/or initial documentation<a name="line.10"></a>
<span class="sourceLineNo">011</span> *******************************************************************************/<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>package org.eclipse.january.dataset;<a name="line.13"></a>
<span class="sourceLineNo">014</span><a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.math.BigInteger;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.util.Date;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import java.util.List;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>public class DatasetFactory {<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span> /**<a name="line.21"></a>
<span class="sourceLineNo">022</span> * Create dataset with items ranging from 0 to given stop in steps of 1<a name="line.22"></a>
<span class="sourceLineNo">023</span> * @param stop<a name="line.23"></a>
<span class="sourceLineNo">024</span> * @return a new double dataset of given shape and type, filled with values determined by parameters<a name="line.24"></a>
<span class="sourceLineNo">025</span> */<a name="line.25"></a>
<span class="sourceLineNo">026</span> public static DoubleDataset createRange(final double stop) {<a name="line.26"></a>
<span class="sourceLineNo">027</span> return createRange(DoubleDataset.class, 0, stop, 1);<a name="line.27"></a>
<span class="sourceLineNo">028</span> }<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span> /**<a name="line.31"></a>
<span class="sourceLineNo">032</span> * Create dataset with items ranging from 0 to given stop in steps of 1<a name="line.32"></a>
<span class="sourceLineNo">033</span> * @param stop<a name="line.33"></a>
<span class="sourceLineNo">034</span> * @param dtype<a name="line.34"></a>
<span class="sourceLineNo">035</span> * @return a new dataset of given shape and type, filled with values determined by parameters<a name="line.35"></a>
<span class="sourceLineNo">036</span> * <a name="line.36"></a>
<span class="sourceLineNo">037</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.37"></a>
<span class="sourceLineNo">038</span> * such as {@link #createRange(Class, double)} <a name="line.38"></a>
<span class="sourceLineNo">039</span> */ <a name="line.39"></a>
<span class="sourceLineNo">040</span> @Deprecated<a name="line.40"></a>
<span class="sourceLineNo">041</span> public static Dataset createRange(final double stop, final int dtype) {<a name="line.41"></a>
<span class="sourceLineNo">042</span> return createRange(0, stop, 1, dtype);<a name="line.42"></a>
<span class="sourceLineNo">043</span> }<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span> /**<a name="line.45"></a>
<span class="sourceLineNo">046</span> * Create dataset with items ranging from given start to given stop in given steps<a name="line.46"></a>
<span class="sourceLineNo">047</span> * @param start<a name="line.47"></a>
<span class="sourceLineNo">048</span> * @param stop<a name="line.48"></a>
<span class="sourceLineNo">049</span> * @param step spacing between items<a name="line.49"></a>
<span class="sourceLineNo">050</span> * @param dtype<a name="line.50"></a>
<span class="sourceLineNo">051</span> * @return a new 1D dataset of given type, filled with values determined by parameters<a name="line.51"></a>
<span class="sourceLineNo">052</span> * <a name="line.52"></a>
<span class="sourceLineNo">053</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.53"></a>
<span class="sourceLineNo">054</span> * such as {@link #createRange(Class, double, double, double)} <a name="line.54"></a>
<span class="sourceLineNo">055</span> */ <a name="line.55"></a>
<span class="sourceLineNo">056</span> @Deprecated<a name="line.56"></a>
<span class="sourceLineNo">057</span> public static Dataset createRange(final double start, final double stop, final double step, final int dtype) {<a name="line.57"></a>
<span class="sourceLineNo">058</span> if ((step &gt; 0) != (start &lt;= stop)) {<a name="line.58"></a>
<span class="sourceLineNo">059</span> throw new IllegalArgumentException("Invalid parameters: start and stop must be in correct order for step");<a name="line.59"></a>
<span class="sourceLineNo">060</span> }<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span> switch (dtype) {<a name="line.62"></a>
<span class="sourceLineNo">063</span> case Dataset.BOOL:<a name="line.63"></a>
<span class="sourceLineNo">064</span> break;<a name="line.64"></a>
<span class="sourceLineNo">065</span> case Dataset.INT8:<a name="line.65"></a>
<span class="sourceLineNo">066</span> return ByteDataset.createRange(start, stop, step);<a name="line.66"></a>
<span class="sourceLineNo">067</span> case Dataset.INT16:<a name="line.67"></a>
<span class="sourceLineNo">068</span> return ShortDataset.createRange(start, stop, step);<a name="line.68"></a>
<span class="sourceLineNo">069</span> case Dataset.INT32:<a name="line.69"></a>
<span class="sourceLineNo">070</span> return IntegerDataset.createRange(start, stop, step);<a name="line.70"></a>
<span class="sourceLineNo">071</span> case Dataset.INT64:<a name="line.71"></a>
<span class="sourceLineNo">072</span> return LongDataset.createRange(start, stop, step);<a name="line.72"></a>
<span class="sourceLineNo">073</span> case Dataset.FLOAT32:<a name="line.73"></a>
<span class="sourceLineNo">074</span> return FloatDataset.createRange(start, stop, step);<a name="line.74"></a>
<span class="sourceLineNo">075</span> case Dataset.FLOAT64:<a name="line.75"></a>
<span class="sourceLineNo">076</span> return DoubleDataset.createRange(start, stop, step);<a name="line.76"></a>
<span class="sourceLineNo">077</span> case Dataset.COMPLEX64:<a name="line.77"></a>
<span class="sourceLineNo">078</span> return ComplexFloatDataset.createRange(start, stop, step);<a name="line.78"></a>
<span class="sourceLineNo">079</span> case Dataset.COMPLEX128:<a name="line.79"></a>
<span class="sourceLineNo">080</span> return ComplexDoubleDataset.createRange(start, stop, step);<a name="line.80"></a>
<span class="sourceLineNo">081</span> }<a name="line.81"></a>
<span class="sourceLineNo">082</span> throw new IllegalArgumentException("dtype not known");<a name="line.82"></a>
<span class="sourceLineNo">083</span> }<a name="line.83"></a>
<span class="sourceLineNo">084</span><a name="line.84"></a>
<span class="sourceLineNo">085</span> /**<a name="line.85"></a>
<span class="sourceLineNo">086</span> * Create compound dataset with items of given size ranging from 0 to given stop in steps of 1<a name="line.86"></a>
<span class="sourceLineNo">087</span> * @param itemSize<a name="line.87"></a>
<span class="sourceLineNo">088</span> * @param stop<a name="line.88"></a>
<span class="sourceLineNo">089</span> * @param dtype<a name="line.89"></a>
<span class="sourceLineNo">090</span> * @return a new dataset of given shape and type, filled with values determined by parameters<a name="line.90"></a>
<span class="sourceLineNo">091</span> * <a name="line.91"></a>
<span class="sourceLineNo">092</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.92"></a>
<span class="sourceLineNo">093</span> * such as {@link #createRange(Class, double, double, double)} <a name="line.93"></a>
<span class="sourceLineNo">094</span> */ <a name="line.94"></a>
<span class="sourceLineNo">095</span> @Deprecated<a name="line.95"></a>
<span class="sourceLineNo">096</span> public static CompoundDataset createRange(final int itemSize, final double stop, final int dtype) {<a name="line.96"></a>
<span class="sourceLineNo">097</span> return createRange(itemSize, 0, stop, 1, dtype);<a name="line.97"></a>
<span class="sourceLineNo">098</span> }<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> /**<a name="line.100"></a>
<span class="sourceLineNo">101</span> * Create compound dataset with items of given size ranging from given start to given stop in given steps<a name="line.101"></a>
<span class="sourceLineNo">102</span> * @param itemSize<a name="line.102"></a>
<span class="sourceLineNo">103</span> * @param start<a name="line.103"></a>
<span class="sourceLineNo">104</span> * @param stop<a name="line.104"></a>
<span class="sourceLineNo">105</span> * @param step spacing between items<a name="line.105"></a>
<span class="sourceLineNo">106</span> * @param dtype<a name="line.106"></a>
<span class="sourceLineNo">107</span> * @return a new 1D dataset of given type, filled with values determined by parameters<a name="line.107"></a>
<span class="sourceLineNo">108</span> * <a name="line.108"></a>
<span class="sourceLineNo">109</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.109"></a>
<span class="sourceLineNo">110</span> * such as {@link #createRange(Class, double, double, double)} <a name="line.110"></a>
<span class="sourceLineNo">111</span> */ <a name="line.111"></a>
<span class="sourceLineNo">112</span> @Deprecated<a name="line.112"></a>
<span class="sourceLineNo">113</span> public static CompoundDataset createRange(final int itemSize, final double start, final double stop, final double step, final int dtype) {<a name="line.113"></a>
<span class="sourceLineNo">114</span> if (itemSize &lt; 1) {<a name="line.114"></a>
<span class="sourceLineNo">115</span> throw new IllegalArgumentException("Item size must be greater or equal to 1");<a name="line.115"></a>
<span class="sourceLineNo">116</span> }<a name="line.116"></a>
<span class="sourceLineNo">117</span> if ((step &gt; 0) != (start &lt;= stop)) {<a name="line.117"></a>
<span class="sourceLineNo">118</span> throw new IllegalArgumentException("Invalid parameters: start and stop must be in correct order for step");<a name="line.118"></a>
<span class="sourceLineNo">119</span> }<a name="line.119"></a>
<span class="sourceLineNo">120</span><a name="line.120"></a>
<span class="sourceLineNo">121</span> switch (dtype) {<a name="line.121"></a>
<span class="sourceLineNo">122</span> case Dataset.BOOL:<a name="line.122"></a>
<span class="sourceLineNo">123</span> break;<a name="line.123"></a>
<span class="sourceLineNo">124</span> case Dataset.ARRAYINT8:<a name="line.124"></a>
<span class="sourceLineNo">125</span> case Dataset.INT8:<a name="line.125"></a>
<span class="sourceLineNo">126</span> return CompoundIntegerDataset.createRange(itemSize, start, stop, step);<a name="line.126"></a>
<span class="sourceLineNo">127</span> case Dataset.ARRAYINT16:<a name="line.127"></a>
<span class="sourceLineNo">128</span> case Dataset.INT16:<a name="line.128"></a>
<span class="sourceLineNo">129</span> return CompoundShortDataset.createRange(itemSize, start, stop, step);<a name="line.129"></a>
<span class="sourceLineNo">130</span> case Dataset.ARRAYINT32:<a name="line.130"></a>
<span class="sourceLineNo">131</span> case Dataset.INT32:<a name="line.131"></a>
<span class="sourceLineNo">132</span> return CompoundIntegerDataset.createRange(itemSize, start, stop, step);<a name="line.132"></a>
<span class="sourceLineNo">133</span> case Dataset.ARRAYINT64:<a name="line.133"></a>
<span class="sourceLineNo">134</span> case Dataset.INT64:<a name="line.134"></a>
<span class="sourceLineNo">135</span> return CompoundLongDataset.createRange(itemSize, start, stop, step);<a name="line.135"></a>
<span class="sourceLineNo">136</span> case Dataset.ARRAYFLOAT32:<a name="line.136"></a>
<span class="sourceLineNo">137</span> case Dataset.FLOAT32:<a name="line.137"></a>
<span class="sourceLineNo">138</span> return CompoundFloatDataset.createRange(itemSize, start, stop, step);<a name="line.138"></a>
<span class="sourceLineNo">139</span> case Dataset.ARRAYFLOAT64:<a name="line.139"></a>
<span class="sourceLineNo">140</span> case Dataset.FLOAT64:<a name="line.140"></a>
<span class="sourceLineNo">141</span> return CompoundDoubleDataset.createRange(itemSize, start, stop, step);<a name="line.141"></a>
<span class="sourceLineNo">142</span> case Dataset.COMPLEX64:<a name="line.142"></a>
<span class="sourceLineNo">143</span> if (itemSize != 2) {<a name="line.143"></a>
<span class="sourceLineNo">144</span> throw new IllegalArgumentException("Item size must be equal to 2");<a name="line.144"></a>
<span class="sourceLineNo">145</span> }<a name="line.145"></a>
<span class="sourceLineNo">146</span> return ComplexFloatDataset.createRange(start, stop, step);<a name="line.146"></a>
<span class="sourceLineNo">147</span> case Dataset.COMPLEX128:<a name="line.147"></a>
<span class="sourceLineNo">148</span> if (itemSize != 2) {<a name="line.148"></a>
<span class="sourceLineNo">149</span> throw new IllegalArgumentException("Item size must be equal to 2");<a name="line.149"></a>
<span class="sourceLineNo">150</span> }<a name="line.150"></a>
<span class="sourceLineNo">151</span> return ComplexFloatDataset.createRange(start, stop, step);<a name="line.151"></a>
<span class="sourceLineNo">152</span> }<a name="line.152"></a>
<span class="sourceLineNo">153</span> throw new IllegalArgumentException("dtype not known");<a name="line.153"></a>
<span class="sourceLineNo">154</span> }<a name="line.154"></a>
<span class="sourceLineNo">155</span> /**<a name="line.155"></a>
<span class="sourceLineNo">156</span> * Create a dataset from object (automatically detect dataset type)<a name="line.156"></a>
<span class="sourceLineNo">157</span> *<a name="line.157"></a>
<span class="sourceLineNo">158</span> * @param obj<a name="line.158"></a>
<span class="sourceLineNo">159</span> * can be Java list, array or Number<a name="line.159"></a>
<span class="sourceLineNo">160</span> * @return dataset<a name="line.160"></a>
<span class="sourceLineNo">161</span> */<a name="line.161"></a>
<span class="sourceLineNo">162</span> public static Dataset createFromObject(Object obj) {<a name="line.162"></a>
<span class="sourceLineNo">163</span> return createFromObject(obj, null);<a name="line.163"></a>
<span class="sourceLineNo">164</span> }<a name="line.164"></a>
<span class="sourceLineNo">165</span><a name="line.165"></a>
<span class="sourceLineNo">166</span> /**<a name="line.166"></a>
<span class="sourceLineNo">167</span> * Create a dataset from object (automatically detect dataset type)<a name="line.167"></a>
<span class="sourceLineNo">168</span> * <a name="line.168"></a>
<span class="sourceLineNo">169</span> * @param obj<a name="line.169"></a>
<span class="sourceLineNo">170</span> * can be Java list, array or Number<a name="line.170"></a>
<span class="sourceLineNo">171</span> * @param shape can be null<a name="line.171"></a>
<span class="sourceLineNo">172</span> * @return dataset<a name="line.172"></a>
<span class="sourceLineNo">173</span> */<a name="line.173"></a>
<span class="sourceLineNo">174</span> public static Dataset createFromObject(Object obj, int... shape) {<a name="line.174"></a>
<span class="sourceLineNo">175</span> if (obj instanceof IDataset) {<a name="line.175"></a>
<span class="sourceLineNo">176</span> Dataset d = DatasetUtils.convertToDataset((IDataset) obj);<a name="line.176"></a>
<span class="sourceLineNo">177</span> if (shape != null) {<a name="line.177"></a>
<span class="sourceLineNo">178</span> d.setShape(shape);<a name="line.178"></a>
<span class="sourceLineNo">179</span> }<a name="line.179"></a>
<span class="sourceLineNo">180</span> return d;<a name="line.180"></a>
<span class="sourceLineNo">181</span> }<a name="line.181"></a>
<span class="sourceLineNo">182</span> if (obj instanceof BigInteger) {<a name="line.182"></a>
<span class="sourceLineNo">183</span> obj = ((BigInteger) obj).longValue();<a name="line.183"></a>
<span class="sourceLineNo">184</span> }<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span> final int dtype = DTypeUtils.getDTypeFromObject(obj);<a name="line.186"></a>
<span class="sourceLineNo">187</span> return createFromObject(dtype, obj, shape);<a name="line.187"></a>
<span class="sourceLineNo">188</span> }<a name="line.188"></a>
<span class="sourceLineNo">189</span><a name="line.189"></a>
<span class="sourceLineNo">190</span> /**<a name="line.190"></a>
<span class="sourceLineNo">191</span> * Create a dataset from object (automatically detect dataset type)<a name="line.191"></a>
<span class="sourceLineNo">192</span> * @param isUnsigned<a name="line.192"></a>
<span class="sourceLineNo">193</span> * if true, interpret integer values as unsigned by increasing element bit width<a name="line.193"></a>
<span class="sourceLineNo">194</span> * @param obj<a name="line.194"></a>
<span class="sourceLineNo">195</span> * can be a Java list, array or Number<a name="line.195"></a>
<span class="sourceLineNo">196</span> * @return dataset<a name="line.196"></a>
<span class="sourceLineNo">197</span> */<a name="line.197"></a>
<span class="sourceLineNo">198</span> public static Dataset createFromObject(boolean isUnsigned, final Object obj) {<a name="line.198"></a>
<span class="sourceLineNo">199</span> Dataset a = createFromObject(obj);<a name="line.199"></a>
<span class="sourceLineNo">200</span> if (isUnsigned) {<a name="line.200"></a>
<span class="sourceLineNo">201</span> a = DatasetUtils.makeUnsigned(a);<a name="line.201"></a>
<span class="sourceLineNo">202</span> }<a name="line.202"></a>
<span class="sourceLineNo">203</span> return a;<a name="line.203"></a>
<span class="sourceLineNo">204</span> }<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span> /**<a name="line.206"></a>
<span class="sourceLineNo">207</span> * Create a dataset from object<a name="line.207"></a>
<span class="sourceLineNo">208</span> * @param dtype<a name="line.208"></a>
<span class="sourceLineNo">209</span> * @param obj<a name="line.209"></a>
<span class="sourceLineNo">210</span> * can be a Java list, array or Number<a name="line.210"></a>
<span class="sourceLineNo">211</span> * @return dataset<a name="line.211"></a>
<span class="sourceLineNo">212</span> * @throws IllegalArgumentException if dataset type is not known<a name="line.212"></a>
<span class="sourceLineNo">213</span> * <a name="line.213"></a>
<span class="sourceLineNo">214</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.214"></a>
<span class="sourceLineNo">215</span> * such as {@link #createFromObject(Class, Object, int)} <a name="line.215"></a>
<span class="sourceLineNo">216</span> */ <a name="line.216"></a>
<span class="sourceLineNo">217</span> @Deprecated<a name="line.217"></a>
<span class="sourceLineNo">218</span> public static Dataset createFromObject(final int dtype, final Object obj) {<a name="line.218"></a>
<span class="sourceLineNo">219</span> return createFromObject(dtype, obj, null);<a name="line.219"></a>
<span class="sourceLineNo">220</span> }<a name="line.220"></a>
<span class="sourceLineNo">221</span><a name="line.221"></a>
<span class="sourceLineNo">222</span> /**<a name="line.222"></a>
<span class="sourceLineNo">223</span> * Create a dataset from object<a name="line.223"></a>
<span class="sourceLineNo">224</span> * @param dtype<a name="line.224"></a>
<span class="sourceLineNo">225</span> * @param obj<a name="line.225"></a>
<span class="sourceLineNo">226</span> * can be a Java list, array or Number<a name="line.226"></a>
<span class="sourceLineNo">227</span> * @param shape can be null<a name="line.227"></a>
<span class="sourceLineNo">228</span> * @return dataset<a name="line.228"></a>
<span class="sourceLineNo">229</span> * @throws IllegalArgumentException if dataset type is not known<a name="line.229"></a>
<span class="sourceLineNo">230</span> * <a name="line.230"></a>
<span class="sourceLineNo">231</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.231"></a>
<span class="sourceLineNo">232</span> * such as {@link #createFromObject(Class, Object, int...)} <a name="line.232"></a>
<span class="sourceLineNo">233</span> */ <a name="line.233"></a>
<span class="sourceLineNo">234</span> @Deprecated<a name="line.234"></a>
<span class="sourceLineNo">235</span> public static Dataset createFromObject(final int dtype, final Object obj, final int... shape) {<a name="line.235"></a>
<span class="sourceLineNo">236</span> return createFromObject(1, dtype, obj, shape);<a name="line.236"></a>
<span class="sourceLineNo">237</span> }<a name="line.237"></a>
<span class="sourceLineNo">238</span><a name="line.238"></a>
<span class="sourceLineNo">239</span> /**<a name="line.239"></a>
<span class="sourceLineNo">240</span> * Create a dataset from object<a name="line.240"></a>
<span class="sourceLineNo">241</span> * @param itemSize<a name="line.241"></a>
<span class="sourceLineNo">242</span> * @param dtype<a name="line.242"></a>
<span class="sourceLineNo">243</span> * @param obj<a name="line.243"></a>
<span class="sourceLineNo">244</span> * can be a Java list, array or Number<a name="line.244"></a>
<span class="sourceLineNo">245</span> * @param shape can be null<a name="line.245"></a>
<span class="sourceLineNo">246</span> * @return dataset<a name="line.246"></a>
<span class="sourceLineNo">247</span> * @throws IllegalArgumentException if dataset type is not known<a name="line.247"></a>
<span class="sourceLineNo">248</span> * <a name="line.248"></a>
<span class="sourceLineNo">249</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.249"></a>
<span class="sourceLineNo">250</span> * such as {@link #createFromObject(int, Class, Object, int...)} <a name="line.250"></a>
<span class="sourceLineNo">251</span> */ <a name="line.251"></a>
<span class="sourceLineNo">252</span> @Deprecated<a name="line.252"></a>
<span class="sourceLineNo">253</span> public static Dataset createFromObject(final int itemSize, final int dtype, final Object obj, final int... shape) {<a name="line.253"></a>
<span class="sourceLineNo">254</span> Dataset d = null;<a name="line.254"></a>
<span class="sourceLineNo">255</span><a name="line.255"></a>
<span class="sourceLineNo">256</span> if (obj instanceof IDataset) {<a name="line.256"></a>
<span class="sourceLineNo">257</span> d = itemSize == 1 ? DatasetUtils.cast((IDataset) obj, dtype) :<a name="line.257"></a>
<span class="sourceLineNo">258</span> DatasetUtils.cast((IDataset) obj, false, dtype, itemSize);<a name="line.258"></a>
<span class="sourceLineNo">259</span> } else {<a name="line.259"></a>
<span class="sourceLineNo">260</span> // primitive arrays<a name="line.260"></a>
<span class="sourceLineNo">261</span> Class&lt;? extends Object&gt; ca = obj == null ? null : obj.getClass().getComponentType();<a name="line.261"></a>
<span class="sourceLineNo">262</span> if (ca != null &amp;&amp; (ca.isPrimitive() || ca.equals(String.class))) {<a name="line.262"></a>
<span class="sourceLineNo">263</span> switch (dtype) {<a name="line.263"></a>
<span class="sourceLineNo">264</span> case Dataset.COMPLEX64:<a name="line.264"></a>
<span class="sourceLineNo">265</span> return new ComplexFloatDataset(DTypeUtils.toFloatArray(obj, DTypeUtils.getLength(obj)), shape);<a name="line.265"></a>
<span class="sourceLineNo">266</span> case Dataset.COMPLEX128:<a name="line.266"></a>
<span class="sourceLineNo">267</span> return new ComplexDoubleDataset(DTypeUtils.toDoubleArray(obj, DTypeUtils.getLength(obj)), shape);<a name="line.267"></a>
<span class="sourceLineNo">268</span> default:<a name="line.268"></a>
<span class="sourceLineNo">269</span> d = createFromPrimitiveArray(DTypeUtils.getDTypeFromClass(ca), obj);<a name="line.269"></a>
<span class="sourceLineNo">270</span> if (!DTypeUtils.isDTypeElemental(dtype)) {<a name="line.270"></a>
<span class="sourceLineNo">271</span> d = DatasetUtils.createCompoundDataset(d, dtype == Dataset.RGB ? 3 : itemSize);<a name="line.271"></a>
<span class="sourceLineNo">272</span> }<a name="line.272"></a>
<span class="sourceLineNo">273</span> d = DatasetUtils.cast(d, dtype);<a name="line.273"></a>
<span class="sourceLineNo">274</span> }<a name="line.274"></a>
<span class="sourceLineNo">275</span> } else {<a name="line.275"></a>
<span class="sourceLineNo">276</span> switch (dtype) {<a name="line.276"></a>
<span class="sourceLineNo">277</span> case Dataset.BOOL:<a name="line.277"></a>
<span class="sourceLineNo">278</span> d = BooleanDataset.createFromObject(obj);<a name="line.278"></a>
<span class="sourceLineNo">279</span> break;<a name="line.279"></a>
<span class="sourceLineNo">280</span> case Dataset.INT8:<a name="line.280"></a>
<span class="sourceLineNo">281</span> d = ByteDataset.createFromObject(obj);<a name="line.281"></a>
<span class="sourceLineNo">282</span> break;<a name="line.282"></a>
<span class="sourceLineNo">283</span> case Dataset.INT16:<a name="line.283"></a>
<span class="sourceLineNo">284</span> d = ShortDataset.createFromObject(obj);<a name="line.284"></a>
<span class="sourceLineNo">285</span> break;<a name="line.285"></a>
<span class="sourceLineNo">286</span> case Dataset.INT32:<a name="line.286"></a>
<span class="sourceLineNo">287</span> d = IntegerDataset.createFromObject(obj);<a name="line.287"></a>
<span class="sourceLineNo">288</span> break;<a name="line.288"></a>
<span class="sourceLineNo">289</span> case Dataset.INT64:<a name="line.289"></a>
<span class="sourceLineNo">290</span> d = LongDataset.createFromObject(obj);<a name="line.290"></a>
<span class="sourceLineNo">291</span> break;<a name="line.291"></a>
<span class="sourceLineNo">292</span> case Dataset.ARRAYINT8:<a name="line.292"></a>
<span class="sourceLineNo">293</span> d = CompoundByteDataset.createFromObject(itemSize, obj);<a name="line.293"></a>
<span class="sourceLineNo">294</span> break;<a name="line.294"></a>
<span class="sourceLineNo">295</span> case Dataset.ARRAYINT16:<a name="line.295"></a>
<span class="sourceLineNo">296</span> d = CompoundShortDataset.createFromObject(itemSize, obj);<a name="line.296"></a>
<span class="sourceLineNo">297</span> break;<a name="line.297"></a>
<span class="sourceLineNo">298</span> case Dataset.ARRAYINT32:<a name="line.298"></a>
<span class="sourceLineNo">299</span> d = CompoundIntegerDataset.createFromObject(itemSize, obj);<a name="line.299"></a>
<span class="sourceLineNo">300</span> break;<a name="line.300"></a>
<span class="sourceLineNo">301</span> case Dataset.ARRAYINT64:<a name="line.301"></a>
<span class="sourceLineNo">302</span> d = CompoundLongDataset.createFromObject(itemSize, obj);<a name="line.302"></a>
<span class="sourceLineNo">303</span> break;<a name="line.303"></a>
<span class="sourceLineNo">304</span> case Dataset.FLOAT32:<a name="line.304"></a>
<span class="sourceLineNo">305</span> d = FloatDataset.createFromObject(obj);<a name="line.305"></a>
<span class="sourceLineNo">306</span> break;<a name="line.306"></a>
<span class="sourceLineNo">307</span> case Dataset.FLOAT64:<a name="line.307"></a>
<span class="sourceLineNo">308</span> d = DoubleDataset.createFromObject(obj);<a name="line.308"></a>
<span class="sourceLineNo">309</span> break;<a name="line.309"></a>
<span class="sourceLineNo">310</span> case Dataset.ARRAYFLOAT32:<a name="line.310"></a>
<span class="sourceLineNo">311</span> d = CompoundFloatDataset.createFromObject(itemSize, obj);<a name="line.311"></a>
<span class="sourceLineNo">312</span> break;<a name="line.312"></a>
<span class="sourceLineNo">313</span> case Dataset.ARRAYFLOAT64:<a name="line.313"></a>
<span class="sourceLineNo">314</span> d = CompoundDoubleDataset.createFromObject(itemSize, obj);<a name="line.314"></a>
<span class="sourceLineNo">315</span> break;<a name="line.315"></a>
<span class="sourceLineNo">316</span> case Dataset.COMPLEX64:<a name="line.316"></a>
<span class="sourceLineNo">317</span> d = ComplexFloatDataset.createFromObject(obj);<a name="line.317"></a>
<span class="sourceLineNo">318</span> break;<a name="line.318"></a>
<span class="sourceLineNo">319</span> case Dataset.COMPLEX128:<a name="line.319"></a>
<span class="sourceLineNo">320</span> d = ComplexDoubleDataset.createFromObject(obj);<a name="line.320"></a>
<span class="sourceLineNo">321</span> break;<a name="line.321"></a>
<span class="sourceLineNo">322</span> case Dataset.DATE:<a name="line.322"></a>
<span class="sourceLineNo">323</span> d = DateDatasetImpl.createFromObject(obj);<a name="line.323"></a>
<span class="sourceLineNo">324</span> break;<a name="line.324"></a>
<span class="sourceLineNo">325</span> case Dataset.STRING:<a name="line.325"></a>
<span class="sourceLineNo">326</span> d = StringDataset.createFromObject(obj);<a name="line.326"></a>
<span class="sourceLineNo">327</span> break;<a name="line.327"></a>
<span class="sourceLineNo">328</span> case Dataset.OBJECT:<a name="line.328"></a>
<span class="sourceLineNo">329</span> d = ObjectDataset.createFromObject(obj);<a name="line.329"></a>
<span class="sourceLineNo">330</span> break;<a name="line.330"></a>
<span class="sourceLineNo">331</span> case Dataset.RGB:<a name="line.331"></a>
<span class="sourceLineNo">332</span> d = RGBDataset.createFromObject(obj);<a name="line.332"></a>
<span class="sourceLineNo">333</span> break;<a name="line.333"></a>
<span class="sourceLineNo">334</span> default:<a name="line.334"></a>
<span class="sourceLineNo">335</span> throw new IllegalArgumentException("Dataset type is not known");<a name="line.335"></a>
<span class="sourceLineNo">336</span> }<a name="line.336"></a>
<span class="sourceLineNo">337</span> }<a name="line.337"></a>
<span class="sourceLineNo">338</span> }<a name="line.338"></a>
<span class="sourceLineNo">339</span><a name="line.339"></a>
<span class="sourceLineNo">340</span> if (shape != null &amp;&amp; !(shape.length == 0 &amp;&amp; d.getSize() &gt; 1)) { // allow zero-rank datasets<a name="line.340"></a>
<span class="sourceLineNo">341</span> d.setShape(shape);<a name="line.341"></a>
<span class="sourceLineNo">342</span> }<a name="line.342"></a>
<span class="sourceLineNo">343</span> return d;<a name="line.343"></a>
<span class="sourceLineNo">344</span> }<a name="line.344"></a>
<span class="sourceLineNo">345</span><a name="line.345"></a>
<span class="sourceLineNo">346</span> private static Dataset createFromPrimitiveArray(final int dtype, final Object array) {<a name="line.346"></a>
<span class="sourceLineNo">347</span> switch (dtype) {<a name="line.347"></a>
<span class="sourceLineNo">348</span> case Dataset.BOOL:<a name="line.348"></a>
<span class="sourceLineNo">349</span> return new BooleanDataset((boolean []) array);<a name="line.349"></a>
<span class="sourceLineNo">350</span> case Dataset.INT8:<a name="line.350"></a>
<span class="sourceLineNo">351</span> return new ByteDataset((byte []) array);<a name="line.351"></a>
<span class="sourceLineNo">352</span> case Dataset.INT16:<a name="line.352"></a>
<span class="sourceLineNo">353</span> return new ShortDataset((short []) array);<a name="line.353"></a>
<span class="sourceLineNo">354</span> case Dataset.INT32:<a name="line.354"></a>
<span class="sourceLineNo">355</span> return new IntegerDataset((int []) array, null);<a name="line.355"></a>
<span class="sourceLineNo">356</span> case Dataset.INT64:<a name="line.356"></a>
<span class="sourceLineNo">357</span> return new LongDataset((long []) array);<a name="line.357"></a>
<span class="sourceLineNo">358</span> case Dataset.FLOAT32:<a name="line.358"></a>
<span class="sourceLineNo">359</span> return new FloatDataset((float []) array);<a name="line.359"></a>
<span class="sourceLineNo">360</span> case Dataset.FLOAT64:<a name="line.360"></a>
<span class="sourceLineNo">361</span> return new DoubleDataset((double []) array);<a name="line.361"></a>
<span class="sourceLineNo">362</span> case Dataset.STRING:<a name="line.362"></a>
<span class="sourceLineNo">363</span> return new StringDataset((String []) array);<a name="line.363"></a>
<span class="sourceLineNo">364</span> case Dataset.DATE:<a name="line.364"></a>
<span class="sourceLineNo">365</span> return new DateDatasetImpl((Date []) array);<a name="line.365"></a>
<span class="sourceLineNo">366</span> default:<a name="line.366"></a>
<span class="sourceLineNo">367</span> return null;<a name="line.367"></a>
<span class="sourceLineNo">368</span> }<a name="line.368"></a>
<span class="sourceLineNo">369</span> }<a name="line.369"></a>
<span class="sourceLineNo">370</span><a name="line.370"></a>
<span class="sourceLineNo">371</span> /**<a name="line.371"></a>
<span class="sourceLineNo">372</span> * Create dataset of appropriate type from list<a name="line.372"></a>
<span class="sourceLineNo">373</span> * <a name="line.373"></a>
<span class="sourceLineNo">374</span> * @param objectList<a name="line.374"></a>
<span class="sourceLineNo">375</span> * @return dataset filled with values from list<a name="line.375"></a>
<span class="sourceLineNo">376</span> */<a name="line.376"></a>
<span class="sourceLineNo">377</span> public static Dataset createFromList(List&lt;?&gt; objectList) {<a name="line.377"></a>
<span class="sourceLineNo">378</span> if (objectList == null || objectList.size() == 0) {<a name="line.378"></a>
<span class="sourceLineNo">379</span> throw new IllegalArgumentException("No list or zero-length list given");<a name="line.379"></a>
<span class="sourceLineNo">380</span> }<a name="line.380"></a>
<span class="sourceLineNo">381</span><a name="line.381"></a>
<span class="sourceLineNo">382</span> Object obj = null;<a name="line.382"></a>
<span class="sourceLineNo">383</span> for (Object o : objectList) {<a name="line.383"></a>
<span class="sourceLineNo">384</span> if (o != null) {<a name="line.384"></a>
<span class="sourceLineNo">385</span> obj = o;<a name="line.385"></a>
<span class="sourceLineNo">386</span> break;<a name="line.386"></a>
<span class="sourceLineNo">387</span> }<a name="line.387"></a>
<span class="sourceLineNo">388</span> }<a name="line.388"></a>
<span class="sourceLineNo">389</span> if (obj == null) {<a name="line.389"></a>
<span class="sourceLineNo">390</span> return zeros(new int[objectList.size()], Dataset.OBJECT);<a name="line.390"></a>
<span class="sourceLineNo">391</span> }<a name="line.391"></a>
<span class="sourceLineNo">392</span><a name="line.392"></a>
<span class="sourceLineNo">393</span> Class&lt;? extends Object&gt; clazz = obj.getClass();<a name="line.393"></a>
<span class="sourceLineNo">394</span> if (!DTypeUtils.isClassSupportedAsElement(clazz)) {<a name="line.394"></a>
<span class="sourceLineNo">395</span> throw new IllegalArgumentException("Class of list element not supported");<a name="line.395"></a>
<span class="sourceLineNo">396</span> }<a name="line.396"></a>
<span class="sourceLineNo">397</span><a name="line.397"></a>
<span class="sourceLineNo">398</span> int dtype = DTypeUtils.getDTypeFromClass(clazz);<a name="line.398"></a>
<span class="sourceLineNo">399</span> return createFromList(dtype, objectList);<a name="line.399"></a>
<span class="sourceLineNo">400</span> }<a name="line.400"></a>
<span class="sourceLineNo">401</span><a name="line.401"></a>
<span class="sourceLineNo">402</span> /**<a name="line.402"></a>
<span class="sourceLineNo">403</span> * Create dataset of given type from list<a name="line.403"></a>
<span class="sourceLineNo">404</span> *<a name="line.404"></a>
<span class="sourceLineNo">405</span> * @param dtype<a name="line.405"></a>
<span class="sourceLineNo">406</span> * @param objectList<a name="line.406"></a>
<span class="sourceLineNo">407</span> * @return dataset filled with values from list<a name="line.407"></a>
<span class="sourceLineNo">408</span> * <a name="line.408"></a>
<span class="sourceLineNo">409</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.409"></a>
<span class="sourceLineNo">410</span> * such as {@link #createFromList(Class, List&lt;?&gt;)} <a name="line.410"></a>
<span class="sourceLineNo">411</span> */ <a name="line.411"></a>
<span class="sourceLineNo">412</span> @Deprecated<a name="line.412"></a>
<span class="sourceLineNo">413</span> public static Dataset createFromList(final int dtype, List&lt;?&gt; objectList) {<a name="line.413"></a>
<span class="sourceLineNo">414</span> int len = objectList.size();<a name="line.414"></a>
<span class="sourceLineNo">415</span> Dataset result = zeros(new int[] { len }, dtype);<a name="line.415"></a>
<span class="sourceLineNo">416</span><a name="line.416"></a>
<span class="sourceLineNo">417</span> for (int i = 0; i &lt; len; i++) {<a name="line.417"></a>
<span class="sourceLineNo">418</span> result.setObjectAbs(i, objectList.get(i));<a name="line.418"></a>
<span class="sourceLineNo">419</span> }<a name="line.419"></a>
<span class="sourceLineNo">420</span> return result;<a name="line.420"></a>
<span class="sourceLineNo">421</span> }<a name="line.421"></a>
<span class="sourceLineNo">422</span><a name="line.422"></a>
<span class="sourceLineNo">423</span> /**<a name="line.423"></a>
<span class="sourceLineNo">424</span> * Create compound dataset of given type from given parts<a name="line.424"></a>
<span class="sourceLineNo">425</span> *<a name="line.425"></a>
<span class="sourceLineNo">426</span> * @param objects<a name="line.426"></a>
<span class="sourceLineNo">427</span> * @return compound dataset<a name="line.427"></a>
<span class="sourceLineNo">428</span> */<a name="line.428"></a>
<span class="sourceLineNo">429</span> public static CompoundDataset createCompoundDataset(Object... objects) {<a name="line.429"></a>
<span class="sourceLineNo">430</span> Dataset[] datasets = new Dataset[objects.length];<a name="line.430"></a>
<span class="sourceLineNo">431</span> for (int i = 0; i &lt; objects.length; i++) {<a name="line.431"></a>
<span class="sourceLineNo">432</span> datasets[i] = createFromObject(objects[i]);<a name="line.432"></a>
<span class="sourceLineNo">433</span> }<a name="line.433"></a>
<span class="sourceLineNo">434</span> return DatasetUtils.createCompoundDataset(datasets);<a name="line.434"></a>
<span class="sourceLineNo">435</span> }<a name="line.435"></a>
<span class="sourceLineNo">436</span><a name="line.436"></a>
<span class="sourceLineNo">437</span> /**<a name="line.437"></a>
<span class="sourceLineNo">438</span> * Create compound dataset of given type from given parts<a name="line.438"></a>
<span class="sourceLineNo">439</span> *<a name="line.439"></a>
<span class="sourceLineNo">440</span> * @param dtype<a name="line.440"></a>
<span class="sourceLineNo">441</span> * @param objects<a name="line.441"></a>
<span class="sourceLineNo">442</span> * @return compound dataset<a name="line.442"></a>
<span class="sourceLineNo">443</span> * <a name="line.443"></a>
<span class="sourceLineNo">444</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.444"></a>
<span class="sourceLineNo">445</span> * such as {@link #createCompoundDataset(Class, Object...)} <a name="line.445"></a>
<span class="sourceLineNo">446</span> */ <a name="line.446"></a>
<span class="sourceLineNo">447</span> @Deprecated<a name="line.447"></a>
<span class="sourceLineNo">448</span> public static CompoundDataset createCompoundDataset(final int dtype, Object... objects) {<a name="line.448"></a>
<span class="sourceLineNo">449</span> Dataset[] datasets = new Dataset[objects.length];<a name="line.449"></a>
<span class="sourceLineNo">450</span> for (int i = 0; i &lt; objects.length; i++) {<a name="line.450"></a>
<span class="sourceLineNo">451</span> datasets[i] = createFromObject(objects[i]);<a name="line.451"></a>
<span class="sourceLineNo">452</span> }<a name="line.452"></a>
<span class="sourceLineNo">453</span> return DatasetUtils.createCompoundDataset(dtype, datasets);<a name="line.453"></a>
<span class="sourceLineNo">454</span> }<a name="line.454"></a>
<span class="sourceLineNo">455</span><a name="line.455"></a>
<span class="sourceLineNo">456</span> /**<a name="line.456"></a>
<span class="sourceLineNo">457</span> * Create complex dataset of given type from real and imaginary parts<a name="line.457"></a>
<span class="sourceLineNo">458</span> *<a name="line.458"></a>
<span class="sourceLineNo">459</span> * @param dtype<a name="line.459"></a>
<span class="sourceLineNo">460</span> * @param real<a name="line.460"></a>
<span class="sourceLineNo">461</span> * @param imag<a name="line.461"></a>
<span class="sourceLineNo">462</span> * @return complex dataset<a name="line.462"></a>
<span class="sourceLineNo">463</span> * <a name="line.463"></a>
<span class="sourceLineNo">464</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.464"></a>
<span class="sourceLineNo">465</span> * such as {@link #createComplexDataset(Class, Object, Object)} <a name="line.465"></a>
<span class="sourceLineNo">466</span> */ <a name="line.466"></a>
<span class="sourceLineNo">467</span> @Deprecated<a name="line.467"></a>
<span class="sourceLineNo">468</span> public static CompoundDataset createComplexDataset(final int dtype, Object real, Object imag) {<a name="line.468"></a>
<span class="sourceLineNo">469</span> switch (dtype) {<a name="line.469"></a>
<span class="sourceLineNo">470</span> case Dataset.COMPLEX64:<a name="line.470"></a>
<span class="sourceLineNo">471</span> return new ComplexFloatDataset(createFromObject(real), createFromObject(imag));<a name="line.471"></a>
<span class="sourceLineNo">472</span> case Dataset.COMPLEX128:<a name="line.472"></a>
<span class="sourceLineNo">473</span> return new ComplexDoubleDataset(createFromObject(real), createFromObject(imag));<a name="line.473"></a>
<span class="sourceLineNo">474</span> default:<a name="line.474"></a>
<span class="sourceLineNo">475</span> throw new IllegalArgumentException("Dataset class must be a complex one");<a name="line.475"></a>
<span class="sourceLineNo">476</span> }<a name="line.476"></a>
<span class="sourceLineNo">477</span> }<a name="line.477"></a>
<span class="sourceLineNo">478</span><a name="line.478"></a>
<span class="sourceLineNo">479</span> /**<a name="line.479"></a>
<span class="sourceLineNo">480</span> * @param shape<a name="line.480"></a>
<span class="sourceLineNo">481</span> * @return a new double dataset of given shape, filled with zeros<a name="line.481"></a>
<span class="sourceLineNo">482</span> */<a name="line.482"></a>
<span class="sourceLineNo">483</span> public static DoubleDataset zeros(final int... shape) {<a name="line.483"></a>
<span class="sourceLineNo">484</span> return zeros(DoubleDataset.class, shape);<a name="line.484"></a>
<span class="sourceLineNo">485</span> }<a name="line.485"></a>
<span class="sourceLineNo">486</span><a name="line.486"></a>
<span class="sourceLineNo">487</span> /**<a name="line.487"></a>
<span class="sourceLineNo">488</span> * @param shape<a name="line.488"></a>
<span class="sourceLineNo">489</span> * @param dtype<a name="line.489"></a>
<span class="sourceLineNo">490</span> * @return a new dataset of given shape and type, filled with zeros<a name="line.490"></a>
<span class="sourceLineNo">491</span> * <a name="line.491"></a>
<span class="sourceLineNo">492</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.492"></a>
<span class="sourceLineNo">493</span> * such as {@link #zeros(Class, int...)} <a name="line.493"></a>
<span class="sourceLineNo">494</span> */ <a name="line.494"></a>
<span class="sourceLineNo">495</span> @Deprecated<a name="line.495"></a>
<span class="sourceLineNo">496</span> public static Dataset zeros(final int[] shape, final int dtype) {<a name="line.496"></a>
<span class="sourceLineNo">497</span> switch (dtype) {<a name="line.497"></a>
<span class="sourceLineNo">498</span> case Dataset.BOOL:<a name="line.498"></a>
<span class="sourceLineNo">499</span> return new BooleanDataset(shape);<a name="line.499"></a>
<span class="sourceLineNo">500</span> case Dataset.INT8:<a name="line.500"></a>
<span class="sourceLineNo">501</span> case Dataset.ARRAYINT8:<a name="line.501"></a>
<span class="sourceLineNo">502</span> return new ByteDataset(shape);<a name="line.502"></a>
<span class="sourceLineNo">503</span> case Dataset.INT16:<a name="line.503"></a>
<span class="sourceLineNo">504</span> case Dataset.ARRAYINT16:<a name="line.504"></a>
<span class="sourceLineNo">505</span> return new ShortDataset(shape);<a name="line.505"></a>
<span class="sourceLineNo">506</span> case Dataset.RGB:<a name="line.506"></a>
<span class="sourceLineNo">507</span> return new RGBDataset(shape);<a name="line.507"></a>
<span class="sourceLineNo">508</span> case Dataset.INT32:<a name="line.508"></a>
<span class="sourceLineNo">509</span> case Dataset.ARRAYINT32:<a name="line.509"></a>
<span class="sourceLineNo">510</span> return new IntegerDataset(shape);<a name="line.510"></a>
<span class="sourceLineNo">511</span> case Dataset.INT64:<a name="line.511"></a>
<span class="sourceLineNo">512</span> case Dataset.ARRAYINT64:<a name="line.512"></a>
<span class="sourceLineNo">513</span> return new LongDataset(shape);<a name="line.513"></a>
<span class="sourceLineNo">514</span> case Dataset.FLOAT32:<a name="line.514"></a>
<span class="sourceLineNo">515</span> case Dataset.ARRAYFLOAT32:<a name="line.515"></a>
<span class="sourceLineNo">516</span> return new FloatDataset(shape);<a name="line.516"></a>
<span class="sourceLineNo">517</span> case Dataset.FLOAT64:<a name="line.517"></a>
<span class="sourceLineNo">518</span> case Dataset.ARRAYFLOAT64:<a name="line.518"></a>
<span class="sourceLineNo">519</span> return new DoubleDataset(shape);<a name="line.519"></a>
<span class="sourceLineNo">520</span> case Dataset.COMPLEX64:<a name="line.520"></a>
<span class="sourceLineNo">521</span> return new ComplexFloatDataset(shape);<a name="line.521"></a>
<span class="sourceLineNo">522</span> case Dataset.COMPLEX128:<a name="line.522"></a>
<span class="sourceLineNo">523</span> return new ComplexDoubleDataset(shape);<a name="line.523"></a>
<span class="sourceLineNo">524</span> case Dataset.STRING:<a name="line.524"></a>
<span class="sourceLineNo">525</span> return new StringDataset(shape);<a name="line.525"></a>
<span class="sourceLineNo">526</span> case Dataset.DATE:<a name="line.526"></a>
<span class="sourceLineNo">527</span> return new DateDatasetImpl(shape);<a name="line.527"></a>
<span class="sourceLineNo">528</span> case Dataset.OBJECT:<a name="line.528"></a>
<span class="sourceLineNo">529</span> return new ObjectDataset(shape);<a name="line.529"></a>
<span class="sourceLineNo">530</span> }<a name="line.530"></a>
<span class="sourceLineNo">531</span> throw new IllegalArgumentException("dtype not known or unsupported");<a name="line.531"></a>
<span class="sourceLineNo">532</span> }<a name="line.532"></a>
<span class="sourceLineNo">533</span><a name="line.533"></a>
<span class="sourceLineNo">534</span> /**<a name="line.534"></a>
<span class="sourceLineNo">535</span> * @param itemSize<a name="line.535"></a>
<span class="sourceLineNo">536</span> * if equal to 1, then non-compound dataset is returned<a name="line.536"></a>
<span class="sourceLineNo">537</span> * @param shape<a name="line.537"></a>
<span class="sourceLineNo">538</span> * @param dtype<a name="line.538"></a>
<span class="sourceLineNo">539</span> * @return a new dataset of given item size, shape and type, filled with zeros<a name="line.539"></a>
<span class="sourceLineNo">540</span> * <a name="line.540"></a>
<span class="sourceLineNo">541</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.541"></a>
<span class="sourceLineNo">542</span> * such as {@link #zeros(int, Class, int...)} <a name="line.542"></a>
<span class="sourceLineNo">543</span> */ <a name="line.543"></a>
<span class="sourceLineNo">544</span> @Deprecated<a name="line.544"></a>
<span class="sourceLineNo">545</span> public static Dataset zeros(final int itemSize, final int[] shape, final int dtype) {<a name="line.545"></a>
<span class="sourceLineNo">546</span> if (itemSize == 1) {<a name="line.546"></a>
<span class="sourceLineNo">547</span> return zeros(shape, dtype);<a name="line.547"></a>
<span class="sourceLineNo">548</span> }<a name="line.548"></a>
<span class="sourceLineNo">549</span> return compoundZeros(itemSize, shape, dtype);<a name="line.549"></a>
<span class="sourceLineNo">550</span> }<a name="line.550"></a>
<span class="sourceLineNo">551</span><a name="line.551"></a>
<span class="sourceLineNo">552</span> /**<a name="line.552"></a>
<span class="sourceLineNo">553</span> * @param itemSize<a name="line.553"></a>
<span class="sourceLineNo">554</span> * @param shape<a name="line.554"></a>
<span class="sourceLineNo">555</span> * @param dtype<a name="line.555"></a>
<span class="sourceLineNo">556</span> * @return a new dataset of given item size, shape and type, filled with zeros<a name="line.556"></a>
<span class="sourceLineNo">557</span> * @since 2.0<a name="line.557"></a>
<span class="sourceLineNo">558</span> * <a name="line.558"></a>
<span class="sourceLineNo">559</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.559"></a>
<span class="sourceLineNo">560</span> * such as {@link #compoundZeros(int, Class, int)} <a name="line.560"></a>
<span class="sourceLineNo">561</span> */ <a name="line.561"></a>
<span class="sourceLineNo">562</span> @Deprecated<a name="line.562"></a>
<span class="sourceLineNo">563</span> public static CompoundDataset compoundZeros(final int itemSize, final int[] shape, final int dtype) {<a name="line.563"></a>
<span class="sourceLineNo">564</span> switch (dtype) {<a name="line.564"></a>
<span class="sourceLineNo">565</span> case Dataset.INT8:<a name="line.565"></a>
<span class="sourceLineNo">566</span> case Dataset.ARRAYINT8:<a name="line.566"></a>
<span class="sourceLineNo">567</span> return new CompoundByteDataset(itemSize, shape);<a name="line.567"></a>
<span class="sourceLineNo">568</span> case Dataset.INT16:<a name="line.568"></a>
<span class="sourceLineNo">569</span> case Dataset.ARRAYINT16:<a name="line.569"></a>
<span class="sourceLineNo">570</span> return new CompoundShortDataset(itemSize, shape);<a name="line.570"></a>
<span class="sourceLineNo">571</span> case Dataset.RGB:<a name="line.571"></a>
<span class="sourceLineNo">572</span> if (itemSize != 3) {<a name="line.572"></a>
<span class="sourceLineNo">573</span> throw new IllegalArgumentException("Number of elements not compatible with RGB type");<a name="line.573"></a>
<span class="sourceLineNo">574</span> }<a name="line.574"></a>
<span class="sourceLineNo">575</span> return new RGBDataset(shape);<a name="line.575"></a>
<span class="sourceLineNo">576</span> case Dataset.INT32:<a name="line.576"></a>
<span class="sourceLineNo">577</span> case Dataset.ARRAYINT32:<a name="line.577"></a>
<span class="sourceLineNo">578</span> return new CompoundIntegerDataset(itemSize, shape);<a name="line.578"></a>
<span class="sourceLineNo">579</span> case Dataset.INT64:<a name="line.579"></a>
<span class="sourceLineNo">580</span> case Dataset.ARRAYINT64:<a name="line.580"></a>
<span class="sourceLineNo">581</span> return new CompoundLongDataset(itemSize, shape);<a name="line.581"></a>
<span class="sourceLineNo">582</span> case Dataset.FLOAT32:<a name="line.582"></a>
<span class="sourceLineNo">583</span> case Dataset.ARRAYFLOAT32:<a name="line.583"></a>
<span class="sourceLineNo">584</span> return new CompoundFloatDataset(itemSize, shape);<a name="line.584"></a>
<span class="sourceLineNo">585</span> case Dataset.FLOAT64:<a name="line.585"></a>
<span class="sourceLineNo">586</span> case Dataset.ARRAYFLOAT64:<a name="line.586"></a>
<span class="sourceLineNo">587</span> return new CompoundDoubleDataset(itemSize, shape);<a name="line.587"></a>
<span class="sourceLineNo">588</span> case Dataset.COMPLEX64:<a name="line.588"></a>
<span class="sourceLineNo">589</span> if (itemSize != 2) {<a name="line.589"></a>
<span class="sourceLineNo">590</span> throw new IllegalArgumentException("Number of elements not compatible with complex type");<a name="line.590"></a>
<span class="sourceLineNo">591</span> }<a name="line.591"></a>
<span class="sourceLineNo">592</span> return new ComplexFloatDataset(shape);<a name="line.592"></a>
<span class="sourceLineNo">593</span> case Dataset.COMPLEX128:<a name="line.593"></a>
<span class="sourceLineNo">594</span> if (itemSize != 2) {<a name="line.594"></a>
<span class="sourceLineNo">595</span> throw new IllegalArgumentException("Number of elements not compatible with complex type");<a name="line.595"></a>
<span class="sourceLineNo">596</span> }<a name="line.596"></a>
<span class="sourceLineNo">597</span> return new ComplexDoubleDataset(shape);<a name="line.597"></a>
<span class="sourceLineNo">598</span> }<a name="line.598"></a>
<span class="sourceLineNo">599</span> throw new IllegalArgumentException("dtype not a known compound type");<a name="line.599"></a>
<span class="sourceLineNo">600</span> }<a name="line.600"></a>
<span class="sourceLineNo">601</span><a name="line.601"></a>
<span class="sourceLineNo">602</span> /**<a name="line.602"></a>
<span class="sourceLineNo">603</span> * @param dataset<a name="line.603"></a>
<span class="sourceLineNo">604</span> * @return a new dataset of same shape and type as input dataset, filled with zeros<a name="line.604"></a>
<span class="sourceLineNo">605</span> */<a name="line.605"></a>
<span class="sourceLineNo">606</span> @SuppressWarnings("unchecked")<a name="line.606"></a>
<span class="sourceLineNo">607</span> public static &lt;T extends Dataset&gt; T zeros(final T dataset) {<a name="line.607"></a>
<span class="sourceLineNo">608</span> int dtype = dataset.getDType();<a name="line.608"></a>
<span class="sourceLineNo">609</span> return (T) (DTypeUtils.isDTypeElemental(dtype) ? zeros(dataset, dtype) :<a name="line.609"></a>
<span class="sourceLineNo">610</span> compoundZeros(dataset.getElementsPerItem(), dataset.getShapeRef(), dtype));<a name="line.610"></a>
<span class="sourceLineNo">611</span> }<a name="line.611"></a>
<span class="sourceLineNo">612</span><a name="line.612"></a>
<span class="sourceLineNo">613</span> /**<a name="line.613"></a>
<span class="sourceLineNo">614</span> * Create a new dataset of same shape as input dataset, filled with zeros. If dtype is not<a name="line.614"></a>
<span class="sourceLineNo">615</span> * explicitly compound then an elemental dataset is created <a name="line.615"></a>
<span class="sourceLineNo">616</span> * @param dataset<a name="line.616"></a>
<span class="sourceLineNo">617</span> * @param dtype<a name="line.617"></a>
<span class="sourceLineNo">618</span> * @return a new dataset<a name="line.618"></a>
<span class="sourceLineNo">619</span> * <a name="line.619"></a>
<span class="sourceLineNo">620</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.620"></a>
<span class="sourceLineNo">621</span> * such as {@link #zeros(Dataset, Class)} <a name="line.621"></a>
<span class="sourceLineNo">622</span> */ <a name="line.622"></a>
<span class="sourceLineNo">623</span> @Deprecated<a name="line.623"></a>
<span class="sourceLineNo">624</span> public static Dataset zeros(final Dataset dataset, final int dtype) {<a name="line.624"></a>
<span class="sourceLineNo">625</span> final int[] shape = dataset.getShapeRef();<a name="line.625"></a>
<span class="sourceLineNo">626</span> final int isize = DTypeUtils.isDTypeElemental(dtype) ? 1 :dataset.getElementsPerItem();<a name="line.626"></a>
<span class="sourceLineNo">627</span><a name="line.627"></a>
<span class="sourceLineNo">628</span> return zeros(isize, shape, dtype);<a name="line.628"></a>
<span class="sourceLineNo">629</span> }<a name="line.629"></a>
<span class="sourceLineNo">630</span><a name="line.630"></a>
<span class="sourceLineNo">631</span> /**<a name="line.631"></a>
<span class="sourceLineNo">632</span> * @param dataset<a name="line.632"></a>
<span class="sourceLineNo">633</span> * @return a new dataset of same shape and type as input dataset, filled with ones<a name="line.633"></a>
<span class="sourceLineNo">634</span> */<a name="line.634"></a>
<span class="sourceLineNo">635</span> @SuppressWarnings("unchecked")<a name="line.635"></a>
<span class="sourceLineNo">636</span> public static &lt;T extends Dataset&gt; T ones(final T dataset) {<a name="line.636"></a>
<span class="sourceLineNo">637</span> return (T) ones(dataset, dataset.getDType());<a name="line.637"></a>
<span class="sourceLineNo">638</span> }<a name="line.638"></a>
<span class="sourceLineNo">639</span><a name="line.639"></a>
<span class="sourceLineNo">640</span> /**<a name="line.640"></a>
<span class="sourceLineNo">641</span> * Create a new dataset of same shape as input dataset, filled with ones. If dtype is not<a name="line.641"></a>
<span class="sourceLineNo">642</span> * explicitly compound then an elemental dataset is created<a name="line.642"></a>
<span class="sourceLineNo">643</span> * @param dataset<a name="line.643"></a>
<span class="sourceLineNo">644</span> * @param dtype<a name="line.644"></a>
<span class="sourceLineNo">645</span> * @return a new dataset<a name="line.645"></a>
<span class="sourceLineNo">646</span> * <a name="line.646"></a>
<span class="sourceLineNo">647</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.647"></a>
<span class="sourceLineNo">648</span> * such as {@link #createRange(Class, double, double, double)} <a name="line.648"></a>
<span class="sourceLineNo">649</span> */ <a name="line.649"></a>
<span class="sourceLineNo">650</span> @Deprecated<a name="line.650"></a>
<span class="sourceLineNo">651</span> public static Dataset ones(final Dataset dataset, final int dtype) {<a name="line.651"></a>
<span class="sourceLineNo">652</span> final int[] shape = dataset.getShapeRef();<a name="line.652"></a>
<span class="sourceLineNo">653</span> final int isize = DTypeUtils.isDTypeElemental(dtype) ? 1 :dataset.getElementsPerItem();<a name="line.653"></a>
<span class="sourceLineNo">654</span><a name="line.654"></a>
<span class="sourceLineNo">655</span> return ones(isize, shape, dtype);<a name="line.655"></a>
<span class="sourceLineNo">656</span> }<a name="line.656"></a>
<span class="sourceLineNo">657</span><a name="line.657"></a>
<span class="sourceLineNo">658</span> /**<a name="line.658"></a>
<span class="sourceLineNo">659</span> * @param shape<a name="line.659"></a>
<span class="sourceLineNo">660</span> * @return a new double dataset of given shape, filled with ones<a name="line.660"></a>
<span class="sourceLineNo">661</span> */<a name="line.661"></a>
<span class="sourceLineNo">662</span> public static DoubleDataset ones(final int... shape) {<a name="line.662"></a>
<span class="sourceLineNo">663</span> return ones(DoubleDataset.class, shape);<a name="line.663"></a>
<span class="sourceLineNo">664</span> }<a name="line.664"></a>
<span class="sourceLineNo">665</span><a name="line.665"></a>
<span class="sourceLineNo">666</span> /**<a name="line.666"></a>
<span class="sourceLineNo">667</span> * @param shape<a name="line.667"></a>
<span class="sourceLineNo">668</span> * @param dtype<a name="line.668"></a>
<span class="sourceLineNo">669</span> * @return a new dataset of given shape and type, filled with ones<a name="line.669"></a>
<span class="sourceLineNo">670</span> * <a name="line.670"></a>
<span class="sourceLineNo">671</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.671"></a>
<span class="sourceLineNo">672</span> * such as {@link #ones(int[], Class)} <a name="line.672"></a>
<span class="sourceLineNo">673</span> */ <a name="line.673"></a>
<span class="sourceLineNo">674</span> @Deprecated<a name="line.674"></a>
<span class="sourceLineNo">675</span> public static Dataset ones(final int[] shape, final int dtype) {<a name="line.675"></a>
<span class="sourceLineNo">676</span> switch (dtype) {<a name="line.676"></a>
<span class="sourceLineNo">677</span> case Dataset.BOOL:<a name="line.677"></a>
<span class="sourceLineNo">678</span> return BooleanDataset.ones(shape);<a name="line.678"></a>
<span class="sourceLineNo">679</span> case Dataset.INT8:<a name="line.679"></a>
<span class="sourceLineNo">680</span> return ByteDataset.ones(shape);<a name="line.680"></a>
<span class="sourceLineNo">681</span> case Dataset.INT16:<a name="line.681"></a>
<span class="sourceLineNo">682</span> return ShortDataset.ones(shape);<a name="line.682"></a>
<span class="sourceLineNo">683</span> case Dataset.RGB:<a name="line.683"></a>
<span class="sourceLineNo">684</span> return new RGBDataset(shape).fill(1);<a name="line.684"></a>
<span class="sourceLineNo">685</span> case Dataset.INT32:<a name="line.685"></a>
<span class="sourceLineNo">686</span> return IntegerDataset.ones(shape);<a name="line.686"></a>
<span class="sourceLineNo">687</span> case Dataset.INT64:<a name="line.687"></a>
<span class="sourceLineNo">688</span> return LongDataset.ones(shape);<a name="line.688"></a>
<span class="sourceLineNo">689</span> case Dataset.FLOAT32:<a name="line.689"></a>
<span class="sourceLineNo">690</span> return FloatDataset.ones(shape);<a name="line.690"></a>
<span class="sourceLineNo">691</span> case Dataset.FLOAT64:<a name="line.691"></a>
<span class="sourceLineNo">692</span> return DoubleDataset.ones(shape);<a name="line.692"></a>
<span class="sourceLineNo">693</span> case Dataset.COMPLEX64:<a name="line.693"></a>
<span class="sourceLineNo">694</span> return ComplexFloatDataset.ones(shape);<a name="line.694"></a>
<span class="sourceLineNo">695</span> case Dataset.COMPLEX128:<a name="line.695"></a>
<span class="sourceLineNo">696</span> return ComplexDoubleDataset.ones(shape);<a name="line.696"></a>
<span class="sourceLineNo">697</span> }<a name="line.697"></a>
<span class="sourceLineNo">698</span> throw new IllegalArgumentException("dtype not known");<a name="line.698"></a>
<span class="sourceLineNo">699</span> }<a name="line.699"></a>
<span class="sourceLineNo">700</span><a name="line.700"></a>
<span class="sourceLineNo">701</span> /**<a name="line.701"></a>
<span class="sourceLineNo">702</span> * @param itemSize<a name="line.702"></a>
<span class="sourceLineNo">703</span> * if equal to 1, then non-compound dataset is returned<a name="line.703"></a>
<span class="sourceLineNo">704</span> * @param shape<a name="line.704"></a>
<span class="sourceLineNo">705</span> * @param dtype<a name="line.705"></a>
<span class="sourceLineNo">706</span> * @return a new dataset of given item size, shape and type, filled with ones<a name="line.706"></a>
<span class="sourceLineNo">707</span> * <a name="line.707"></a>
<span class="sourceLineNo">708</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.708"></a>
<span class="sourceLineNo">709</span> * such as {@link #ones(Class, int...)} <a name="line.709"></a>
<span class="sourceLineNo">710</span> */ <a name="line.710"></a>
<span class="sourceLineNo">711</span> @Deprecated<a name="line.711"></a>
<span class="sourceLineNo">712</span> public static Dataset ones(final int itemSize, final int[] shape, final int dtype) {<a name="line.712"></a>
<span class="sourceLineNo">713</span> if (itemSize == 1) {<a name="line.713"></a>
<span class="sourceLineNo">714</span> return ones(shape, dtype);<a name="line.714"></a>
<span class="sourceLineNo">715</span> }<a name="line.715"></a>
<span class="sourceLineNo">716</span> switch (dtype) {<a name="line.716"></a>
<span class="sourceLineNo">717</span> case Dataset.INT8:<a name="line.717"></a>
<span class="sourceLineNo">718</span> case Dataset.ARRAYINT8:<a name="line.718"></a>
<span class="sourceLineNo">719</span> return CompoundByteDataset.ones(itemSize, shape);<a name="line.719"></a>
<span class="sourceLineNo">720</span> case Dataset.INT16:<a name="line.720"></a>
<span class="sourceLineNo">721</span> case Dataset.ARRAYINT16:<a name="line.721"></a>
<span class="sourceLineNo">722</span> return CompoundShortDataset.ones(itemSize, shape);<a name="line.722"></a>
<span class="sourceLineNo">723</span> case Dataset.RGB:<a name="line.723"></a>
<span class="sourceLineNo">724</span> if (itemSize != 3) {<a name="line.724"></a>
<span class="sourceLineNo">725</span> throw new IllegalArgumentException("Number of elements not compatible with RGB type");<a name="line.725"></a>
<span class="sourceLineNo">726</span> }<a name="line.726"></a>
<span class="sourceLineNo">727</span> return new RGBDataset(shape).fill(1);<a name="line.727"></a>
<span class="sourceLineNo">728</span> case Dataset.INT32:<a name="line.728"></a>
<span class="sourceLineNo">729</span> case Dataset.ARRAYINT32:<a name="line.729"></a>
<span class="sourceLineNo">730</span> return CompoundIntegerDataset.ones(itemSize, shape);<a name="line.730"></a>
<span class="sourceLineNo">731</span> case Dataset.INT64:<a name="line.731"></a>
<span class="sourceLineNo">732</span> case Dataset.ARRAYINT64:<a name="line.732"></a>
<span class="sourceLineNo">733</span> return CompoundLongDataset.ones(itemSize, shape);<a name="line.733"></a>
<span class="sourceLineNo">734</span> case Dataset.FLOAT32:<a name="line.734"></a>
<span class="sourceLineNo">735</span> case Dataset.ARRAYFLOAT32:<a name="line.735"></a>
<span class="sourceLineNo">736</span> return CompoundFloatDataset.ones(itemSize, shape);<a name="line.736"></a>
<span class="sourceLineNo">737</span> case Dataset.FLOAT64:<a name="line.737"></a>
<span class="sourceLineNo">738</span> case Dataset.ARRAYFLOAT64:<a name="line.738"></a>
<span class="sourceLineNo">739</span> return CompoundDoubleDataset.ones(itemSize, shape);<a name="line.739"></a>
<span class="sourceLineNo">740</span> case Dataset.COMPLEX64:<a name="line.740"></a>
<span class="sourceLineNo">741</span> if (itemSize != 2) {<a name="line.741"></a>
<span class="sourceLineNo">742</span> throw new IllegalArgumentException("Number of elements not compatible with complex type");<a name="line.742"></a>
<span class="sourceLineNo">743</span> }<a name="line.743"></a>
<span class="sourceLineNo">744</span> return ComplexFloatDataset.ones(shape);<a name="line.744"></a>
<span class="sourceLineNo">745</span> case Dataset.COMPLEX128:<a name="line.745"></a>
<span class="sourceLineNo">746</span> if (itemSize != 2) {<a name="line.746"></a>
<span class="sourceLineNo">747</span> throw new IllegalArgumentException("Number of elements not compatible with complex type");<a name="line.747"></a>
<span class="sourceLineNo">748</span> }<a name="line.748"></a>
<span class="sourceLineNo">749</span> return ComplexDoubleDataset.ones(shape);<a name="line.749"></a>
<span class="sourceLineNo">750</span> }<a name="line.750"></a>
<span class="sourceLineNo">751</span> throw new IllegalArgumentException("dtype not a known compound type");<a name="line.751"></a>
<span class="sourceLineNo">752</span> }<a name="line.752"></a>
<span class="sourceLineNo">753</span><a name="line.753"></a>
<span class="sourceLineNo">754</span> /**<a name="line.754"></a>
<span class="sourceLineNo">755</span> * Create a 1D dataset of linearly spaced values in closed interval<a name="line.755"></a>
<span class="sourceLineNo">756</span> * <a name="line.756"></a>
<span class="sourceLineNo">757</span> * @param start<a name="line.757"></a>
<span class="sourceLineNo">758</span> * @param stop<a name="line.758"></a>
<span class="sourceLineNo">759</span> * @param length number of points<a name="line.759"></a>
<span class="sourceLineNo">760</span> * @param dtype<a name="line.760"></a>
<span class="sourceLineNo">761</span> * @return dataset with linearly spaced values<a name="line.761"></a>
<span class="sourceLineNo">762</span> * <a name="line.762"></a>
<span class="sourceLineNo">763</span> * @deprecated Please use the class-based methods in DatasetFactory, <a name="line.763"></a>
<span class="sourceLineNo">764</span> * such as {@link #createLinearSpace(Class, double, double, int)} <a name="line.764"></a>
<span class="sourceLineNo">765</span> */ <a name="line.765"></a>
<span class="sourceLineNo">766</span> @Deprecated<a name="line.766"></a>
<span class="sourceLineNo">767</span> public static Dataset createLinearSpace(final double start, final double stop, final int length, final int dtype) {<a name="line.767"></a>
<span class="sourceLineNo">768</span> if (length &lt; 1) {<a name="line.768"></a>
<span class="sourceLineNo">769</span> throw new IllegalArgumentException("Length is less than one");<a name="line.769"></a>
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<span class="sourceLineNo">771</span> return createFromObject(dtype, start);<a name="line.771"></a>
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<span class="sourceLineNo">773</span> Dataset ds = zeros(new int[] {length}, dtype);<a name="line.773"></a>
<span class="sourceLineNo">774</span> double num = stop - start;<a name="line.774"></a>
<span class="sourceLineNo">775</span> double den = length - 1;<a name="line.775"></a>
<span class="sourceLineNo">776</span> double value;<a name="line.776"></a>
<span class="sourceLineNo">777</span> <a name="line.777"></a>
<span class="sourceLineNo">778</span> for (int i = 0; i &lt; length; i++) {<a name="line.778"></a>
<span class="sourceLineNo">779</span> value = start + (num * i) / den;<a name="line.779"></a>
<span class="sourceLineNo">780</span> ds.setObjectAbs(i, value);<a name="line.780"></a>
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<span class="sourceLineNo">782</span> <a name="line.782"></a>
<span class="sourceLineNo">783</span> return ds;<a name="line.783"></a>
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<span class="sourceLineNo">785</span> }<a name="line.785"></a>
<span class="sourceLineNo">786</span><a name="line.786"></a>
<span class="sourceLineNo">787</span> /**<a name="line.787"></a>
<span class="sourceLineNo">788</span> * Create a 1D dataset of logarithmically spaced values in closed interval. The base value is used to<a name="line.788"></a>
<span class="sourceLineNo">789</span> * determine the factor between values: factor = base ** step, where step is the interval between linearly<a name="line.789"></a>
<span class="sourceLineNo">790</span> * spaced sequence of points<a name="line.790"></a>
<span class="sourceLineNo">791</span> * <a name="line.791"></a>
<span class="sourceLineNo">792</span> * @param start<a name="line.792"></a>
<span class="sourceLineNo">793</span> * @param stop<a name="line.793"></a>
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<span class="sourceLineNo">796</span> * @param dtype<a name="line.796"></a>
<span class="sourceLineNo">797</span> * @return dataset with logarithmically spaced values<a name="line.797"></a>
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<span class="sourceLineNo">800</span> * such as {@link #createLogSpace(Class, double, double, int, double)} <a name="line.800"></a>
<span class="sourceLineNo">801</span> */ <a name="line.801"></a>
<span class="sourceLineNo">802</span> @Deprecated<a name="line.802"></a>
<span class="sourceLineNo">803</span> public static Dataset createLogSpace(final double start, final double stop, final int length, final double base, final int dtype) {<a name="line.803"></a>
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<span class="sourceLineNo">809</span> Dataset ds = zeros(new int[] {length}, dtype);<a name="line.809"></a>
<span class="sourceLineNo">810</span> double step = (stop - start) / (length - 1);<a name="line.810"></a>
<span class="sourceLineNo">811</span> double value;<a name="line.811"></a>
<span class="sourceLineNo">812</span> <a name="line.812"></a>
<span class="sourceLineNo">813</span> for (int i = 0; i &lt; length; i++) {<a name="line.813"></a>
<span class="sourceLineNo">814</span> value = start + i * step;<a name="line.814"></a>
<span class="sourceLineNo">815</span> ds.setObjectAbs(i, Math.pow(base, value));<a name="line.815"></a>
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<span class="sourceLineNo">817</span> <a name="line.817"></a>
<span class="sourceLineNo">818</span> return ds;<a name="line.818"></a>
<span class="sourceLineNo">819</span> }<a name="line.819"></a>
<span class="sourceLineNo">820</span> }<a name="line.820"></a>
<span class="sourceLineNo">821</span><a name="line.821"></a>
<span class="sourceLineNo">822</span> /**<a name="line.822"></a>
<span class="sourceLineNo">823</span> * Create dataset with items ranging from 0 to given stop in steps of 1<a name="line.823"></a>
<span class="sourceLineNo">824</span> * @param clazz<a name="line.824"></a>
<span class="sourceLineNo">825</span> * @param stop<a name="line.825"></a>
<span class="sourceLineNo">826</span> * @return a new dataset of given shape and type, filled with values determined by parameters<a name="line.826"></a>
<span class="sourceLineNo">827</span> */<a name="line.827"></a>
<span class="sourceLineNo">828</span> @SuppressWarnings("unchecked")<a name="line.828"></a>
<span class="sourceLineNo">829</span> public static &lt;T extends Dataset&gt; T createRange(Class&lt;T&gt; clazz, final double stop) {<a name="line.829"></a>
<span class="sourceLineNo">830</span> return (T) createRange(0, stop, 1, DTypeUtils.getDType(clazz));<a name="line.830"></a>
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<span class="sourceLineNo">832</span><a name="line.832"></a>
<span class="sourceLineNo">833</span> /**<a name="line.833"></a>
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<span class="sourceLineNo">835</span> * @param clazz dataset class<a name="line.835"></a>
<span class="sourceLineNo">836</span> * @param start<a name="line.836"></a>
<span class="sourceLineNo">837</span> * @param stop<a name="line.837"></a>
<span class="sourceLineNo">838</span> * @param step spacing between items<a name="line.838"></a>
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<span class="sourceLineNo">841</span> @SuppressWarnings("unchecked")<a name="line.841"></a>
<span class="sourceLineNo">842</span> public static &lt;T extends Dataset&gt; T createRange(Class&lt;T&gt; clazz, final double start, final double stop, final double step) {<a name="line.842"></a>
<span class="sourceLineNo">843</span> return (T) createRange(start, stop, step, DTypeUtils.getDType(clazz));<a name="line.843"></a>
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<span class="sourceLineNo">845</span><a name="line.845"></a>
<span class="sourceLineNo">846</span> /**<a name="line.846"></a>
<span class="sourceLineNo">847</span> * Create a dataset from object<a name="line.847"></a>
<span class="sourceLineNo">848</span> * @param clazz dataset class<a name="line.848"></a>
<span class="sourceLineNo">849</span> * @param obj<a name="line.849"></a>
<span class="sourceLineNo">850</span> * can be a Java list, array or Number<a name="line.850"></a>
<span class="sourceLineNo">851</span> * @param shape can be null<a name="line.851"></a>
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<span class="sourceLineNo">855</span> @SuppressWarnings("unchecked")<a name="line.855"></a>
<span class="sourceLineNo">856</span> public static &lt;T extends Dataset&gt; T createFromObject(Class&lt;T&gt; clazz, Object obj, int... shape) {<a name="line.856"></a>
<span class="sourceLineNo">857</span> return (T) createFromObject(1, DTypeUtils.getDType(clazz), obj, shape);<a name="line.857"></a>
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<span class="sourceLineNo">859</span><a name="line.859"></a>
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<span class="sourceLineNo">861</span> * Create a compound dataset from object<a name="line.861"></a>
<span class="sourceLineNo">862</span> * @param itemSize<a name="line.862"></a>
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<span class="sourceLineNo">867</span> * @return dataset<a name="line.867"></a>
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<span class="sourceLineNo">870</span> @SuppressWarnings("unchecked")<a name="line.870"></a>
<span class="sourceLineNo">871</span> public static &lt;T extends Dataset&gt; T createFromObject(final int itemSize, Class&lt;T&gt; clazz, Object obj, int... shape) {<a name="line.871"></a>
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<span class="sourceLineNo">874</span><a name="line.874"></a>
<span class="sourceLineNo">875</span> /**<a name="line.875"></a>
<span class="sourceLineNo">876</span> * Create dataset of given class from list<a name="line.876"></a>
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<span class="sourceLineNo">878</span> * @param clazz dataset class<a name="line.878"></a>
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<span class="sourceLineNo">881</span> */<a name="line.881"></a>
<span class="sourceLineNo">882</span> @SuppressWarnings("unchecked")<a name="line.882"></a>
<span class="sourceLineNo">883</span> public static &lt;T extends Dataset&gt; T createFromList(Class&lt;T&gt; clazz, List&lt;?&gt; objectList) {<a name="line.883"></a>
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<span class="sourceLineNo">886</span><a name="line.886"></a>
<span class="sourceLineNo">887</span> /**<a name="line.887"></a>
<span class="sourceLineNo">888</span> * Create compound dataset of given class from given parts<a name="line.888"></a>
<span class="sourceLineNo">889</span> *<a name="line.889"></a>
<span class="sourceLineNo">890</span> * @param clazz<a name="line.890"></a>
<span class="sourceLineNo">891</span> * @param objects<a name="line.891"></a>
<span class="sourceLineNo">892</span> * @return compound dataset<a name="line.892"></a>
<span class="sourceLineNo">893</span> */<a name="line.893"></a>
<span class="sourceLineNo">894</span> @SuppressWarnings("unchecked")<a name="line.894"></a>
<span class="sourceLineNo">895</span> public static &lt;T extends Dataset&gt; T createCompoundDataset(Class&lt;T&gt; clazz, Object... objects) {<a name="line.895"></a>
<span class="sourceLineNo">896</span> return (T) createCompoundDataset(DTypeUtils.getDType(clazz), objects);<a name="line.896"></a>
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<span class="sourceLineNo">898</span><a name="line.898"></a>
<span class="sourceLineNo">899</span> /**<a name="line.899"></a>
<span class="sourceLineNo">900</span> * Create complex dataset of given class from real and imaginary parts<a name="line.900"></a>
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<span class="sourceLineNo">902</span> * @param clazz dataset class<a name="line.902"></a>
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<span class="sourceLineNo">905</span> * @return complex dataset<a name="line.905"></a>
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<span class="sourceLineNo">907</span> @SuppressWarnings("unchecked")<a name="line.907"></a>
<span class="sourceLineNo">908</span> public static &lt;T extends Dataset&gt; T createComplexDataset(Class&lt;T&gt; clazz, Object real, Object imag) {<a name="line.908"></a>
<span class="sourceLineNo">909</span> return (T) createComplexDataset(DTypeUtils.getDType(clazz), real, imag);<a name="line.909"></a>
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<span class="sourceLineNo">911</span><a name="line.911"></a>
<span class="sourceLineNo">912</span> /**<a name="line.912"></a>
<span class="sourceLineNo">913</span> * @param clazz dataset class<a name="line.913"></a>
<span class="sourceLineNo">914</span> * @param shape<a name="line.914"></a>
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<span class="sourceLineNo">917</span> @SuppressWarnings("unchecked")<a name="line.917"></a>
<span class="sourceLineNo">918</span> public static &lt;T extends Dataset&gt; T zeros(Class&lt;T&gt; clazz, int... shape) {<a name="line.918"></a>
<span class="sourceLineNo">919</span> return (T) zeros(shape, DTypeUtils.getDType(clazz));<a name="line.919"></a>
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<span class="sourceLineNo">923</span> * @param itemSize<a name="line.923"></a>
<span class="sourceLineNo">924</span> * if equal to 1, then non-compound dataset is returned<a name="line.924"></a>
<span class="sourceLineNo">925</span> * @param clazz dataset class<a name="line.925"></a>
<span class="sourceLineNo">926</span> * @param shape<a name="line.926"></a>
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<span class="sourceLineNo">929</span> @SuppressWarnings("unchecked")<a name="line.929"></a>
<span class="sourceLineNo">930</span> public static &lt;T extends Dataset&gt; T zeros(int itemSize, Class&lt;T&gt; clazz, int... shape) {<a name="line.930"></a>
<span class="sourceLineNo">931</span> return (T) zeros(itemSize, shape, DTypeUtils.getDType(clazz));<a name="line.931"></a>
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<span class="sourceLineNo">933</span><a name="line.933"></a>
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<span class="sourceLineNo">935</span> * @param dataset<a name="line.935"></a>
<span class="sourceLineNo">936</span> * @param clazz dataset class<a name="line.936"></a>
<span class="sourceLineNo">937</span> * @return a new dataset of given class with same shape as input dataset, filled with zeros<a name="line.937"></a>
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<span class="sourceLineNo">939</span> @SuppressWarnings("unchecked")<a name="line.939"></a>
<span class="sourceLineNo">940</span> public static &lt;T extends Dataset&gt; T zeros(Dataset dataset, Class&lt;T&gt; clazz) {<a name="line.940"></a>
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<span class="sourceLineNo">946</span> * @param clazz compound dataset class<a name="line.946"></a>
<span class="sourceLineNo">947</span> * @param shape<a name="line.947"></a>
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<span class="sourceLineNo">951</span> @SuppressWarnings("unchecked")<a name="line.951"></a>
<span class="sourceLineNo">952</span> public static &lt;T extends CompoundDataset&gt; T compoundZeros(int itemSize, Class&lt;T&gt; clazz, int... shape) {<a name="line.952"></a>
<span class="sourceLineNo">953</span> return (T) compoundZeros(itemSize, shape, DTypeUtils.getDType(clazz));<a name="line.953"></a>
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<span class="sourceLineNo">961</span> @SuppressWarnings("unchecked")<a name="line.961"></a>
<span class="sourceLineNo">962</span> public static &lt;T extends Dataset&gt; T ones(Class&lt;T&gt; clazz, int... shape) {<a name="line.962"></a>
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<span class="sourceLineNo">973</span> @SuppressWarnings("unchecked")<a name="line.973"></a>
<span class="sourceLineNo">974</span> public static &lt;T extends Dataset&gt; T ones(int itemSize, Class&lt;T&gt; clazz, int... shape) {<a name="line.974"></a>
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<span class="sourceLineNo">983</span> @SuppressWarnings("unchecked")<a name="line.983"></a>
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<span class="sourceLineNo">997</span> @SuppressWarnings("unchecked")<a name="line.997"></a>
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<span class="sourceLineNo">1010</span> * @param base<a name="line.1010"></a>
<span class="sourceLineNo">1011</span> * @return dataset with logarithmically spaced values<a name="line.1011"></a>
<span class="sourceLineNo">1012</span> */<a name="line.1012"></a>
<span class="sourceLineNo">1013</span> @SuppressWarnings("unchecked")<a name="line.1013"></a>
<span class="sourceLineNo">1014</span> public static &lt;T extends Dataset&gt; T createLogSpace(Class&lt;T&gt; clazz, final double start, final double stop, final int length, final double base) {<a name="line.1014"></a>
<span class="sourceLineNo">1015</span> return (T) createLogSpace(start, stop, length, base, DTypeUtils.getDType(clazz));<a name="line.1015"></a>
<span class="sourceLineNo">1016</span> }<a name="line.1016"></a>
<span class="sourceLineNo">1017</span>}<a name="line.1017"></a>
</pre>
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